diff --git a/packages/ckeditor5-mermaid/tests/commands/insertMermaidCommand.ts b/packages/ckeditor5-mermaid/tests/commands/insertMermaidCommand.ts
index f210adcd7..d65ba11f1 100644
--- a/packages/ckeditor5-mermaid/tests/commands/insertMermaidCommand.ts
+++ b/packages/ckeditor5-mermaid/tests/commands/insertMermaidCommand.ts
@@ -1,12 +1,4 @@
-import { ClassicEditor } from '@ckeditor/ckeditor5-editor-classic';
-import { Paragraph } from '@ckeditor/ckeditor5-paragraph';
-import {
-	_setModelData as setModelData,
-	_getModelData as getModelData
-} from '@ckeditor/ckeditor5-engine';
-
-import InsertMermaidCommand from '../../src/commands/insertMermaidCommand.js';
-import MermaidEditing from '../../src/mermaidediting.js';
+import { ClassicEditor, Paragraph, _setModelData as setModelData, _getModelData as getModelData } from 'ckeditor5';
 
 /* global document */
 
diff --git a/packages/ckeditor5-mermaid/tests/commands/mermaidPreviewCommand.ts b/packages/ckeditor5-mermaid/tests/commands/mermaidPreviewCommand.ts
index 3de865799..b1f94fa80 100644
--- a/packages/ckeditor5-mermaid/tests/commands/mermaidPreviewCommand.ts
+++ b/packages/ckeditor5-mermaid/tests/commands/mermaidPreviewCommand.ts
@@ -1,9 +1,4 @@
-import { ClassicEditor } from '@ckeditor/ckeditor5-editor-classic';
-import { Paragraph } from '@ckeditor/ckeditor5-paragraph';
-import {
-	_setModelData as setModelData,
-	_getModelData as getModelData
-} from '@ckeditor/ckeditor5-engine';
+import { ClassicEditor, Paragraph, _setModelData as setModelData, _getModelData as getModelData } from 'ckeditor5';
 
 import MermaidPreviewCommand from '../../src/commands/mermaidPreviewCommand.js';
 import MermaidEditing from '../../src/mermaidediting.js';
diff --git a/packages/ckeditor5-mermaid/tests/commands/mermaidSourceViewCommand.ts b/packages/ckeditor5-mermaid/tests/commands/mermaidSourceViewCommand.ts
index ec32aadb0..94675bf8e 100644
--- a/packages/ckeditor5-mermaid/tests/commands/mermaidSourceViewCommand.ts
+++ b/packages/ckeditor5-mermaid/tests/commands/mermaidSourceViewCommand.ts
@@ -1,9 +1,4 @@
-import { ClassicEditor } from '@ckeditor/ckeditor5-editor-classic';
-import { Paragraph } from '@ckeditor/ckeditor5-paragraph';
-import {
-	_setModelData as setModelData,
-	_getModelData as getModelData
-} from '@ckeditor/ckeditor5-engine';
+import { ClassicEditor, Paragraph, _setModelData as setModelData, _getModelData as getModelData } from 'ckeditor5';
 
 import MermaidSourceViewCommand from '../../src/commands/mermaidSourceViewCommand.js';
 import MermaidEditing from '../../src/mermaidediting.js';
diff --git a/packages/ckeditor5-mermaid/tests/commands/mermaidSplitViewCommand.ts b/packages/ckeditor5-mermaid/tests/commands/mermaidSplitViewCommand.ts
index ddc43a32c..680197d98 100644
--- a/packages/ckeditor5-mermaid/tests/commands/mermaidSplitViewCommand.ts
+++ b/packages/ckeditor5-mermaid/tests/commands/mermaidSplitViewCommand.ts
@@ -1,9 +1,4 @@
-import { ClassicEditor } from '@ckeditor/ckeditor5-editor-classic';
-import { Paragraph } from '@ckeditor/ckeditor5-paragraph';
-import {
-	_setModelData as setModelData,
-	_getModelData as getModelData
-} from '@ckeditor/ckeditor5-engine';
+import { ClassicEditor, Paragraph, _setModelData as setModelData, _getModelData as getModelData } from 'ckeditor5';
 
 import MermaidSplitViewCommand from '../../src/commands/mermaidSplitViewCommand.js';
 import MermaidEditing from '../../src/mermaidediting.js';
diff --git a/packages/ckeditor5-mermaid/tests/manual/markdown.ts b/packages/ckeditor5-mermaid/tests/manual/markdown.ts
index 8f1f26f9e..2dff098a7 100644
--- a/packages/ckeditor5-mermaid/tests/manual/markdown.ts
+++ b/packages/ckeditor5-mermaid/tests/manual/markdown.ts
@@ -5,16 +5,7 @@
 
 /* globals console, window, document */
 
-import { ClassicEditor } from '@ckeditor/ckeditor5-editor-classic';
-import { Typing } from '@ckeditor/ckeditor5-typing';
-import { Paragraph } from '@ckeditor/ckeditor5-paragraph';
-import { Undo } from '@ckeditor/ckeditor5-undo';
-import { Enter } from '@ckeditor/ckeditor5-enter';
-import { Clipboard } from '@ckeditor/ckeditor5-clipboard';
-import { Link } from '@ckeditor/ckeditor5-link';
-import { Bold, Italic } from '@ckeditor/ckeditor5-basic-styles';
-import { Markdown } from '@ckeditor/ckeditor5-markdown-gfm';
-import { CodeBlock } from '@ckeditor/ckeditor5-code-block';
+import { ClassicEditor, Typing, Paragraph, Undo, Enter, Clipboard, Link, Bold, Italic, Markdown, CodeBlock } from 'ckeditor5';
 
 import Mermaid from '../../src/mermaid.js';
 
diff --git a/packages/ckeditor5-mermaid/tests/manual/mermaid.ts b/packages/ckeditor5-mermaid/tests/manual/mermaid.ts
index de9f7832b..7d5190088 100644
--- a/packages/ckeditor5-mermaid/tests/manual/mermaid.ts
+++ b/packages/ckeditor5-mermaid/tests/manual/mermaid.ts
@@ -5,15 +5,7 @@
 
 /* globals console, window, document */
 
-import { ClassicEditor } from '@ckeditor/ckeditor5-editor-classic';
-import { Typing } from '@ckeditor/ckeditor5-typing';
-import { Paragraph } from '@ckeditor/ckeditor5-paragraph';
-import { Undo } from '@ckeditor/ckeditor5-undo';
-import { Enter } from '@ckeditor/ckeditor5-enter';
-import { Clipboard } from '@ckeditor/ckeditor5-clipboard';
-import { Link } from '@ckeditor/ckeditor5-link';
-import { Bold, Italic } from '@ckeditor/ckeditor5-basic-styles';
-import { CodeBlock } from '@ckeditor/ckeditor5-code-block';
+import { ClassicEditor, Typing, Paragraph, Undo, Enter, Clipboard, Link, Bold, Italic, CodeBlock } from '@ckeditor/ckeditor5-editor-classic';
 
 import Mermaid from '../../src/mermaid.js';
 
diff --git a/packages/ckeditor5-mermaid/tests/mermaid.ts b/packages/ckeditor5-mermaid/tests/mermaid.ts
index 7a629848b..1ae7abd8a 100644
--- a/packages/ckeditor5-mermaid/tests/mermaid.ts
+++ b/packages/ckeditor5-mermaid/tests/mermaid.ts
@@ -1,8 +1,4 @@
-import { ClassicEditor } from '@ckeditor/ckeditor5-editor-classic';
-import { Essentials } from '@ckeditor/ckeditor5-essentials';
-import { Paragraph } from '@ckeditor/ckeditor5-paragraph';
-import { Heading } from '@ckeditor/ckeditor5-heading';
-import { _setModelData as setModelData } from '@ckeditor/ckeditor5-engine';
+import { ClassicEditor, Essentials, Paragraph, Heading, _setModelData as setModelData } from 'ckeditor5';
 
 import Mermaid from '../src/mermaid.js';
 
diff --git a/packages/ckeditor5-mermaid/tests/mermaidediting.ts b/packages/ckeditor5-mermaid/tests/mermaidediting.ts
index 44e8daed3..7c1aaa5cd 100644
--- a/packages/ckeditor5-mermaid/tests/mermaidediting.ts
+++ b/packages/ckeditor5-mermaid/tests/mermaidediting.ts
@@ -1,13 +1,4 @@
-import { ClassicEditor } from '@ckeditor/ckeditor5-editor-classic';
-import { Essentials } from '@ckeditor/ckeditor5-essentials';
-import { Paragraph } from '@ckeditor/ckeditor5-paragraph';
-import { Heading } from '@ckeditor/ckeditor5-heading';
-import { CodeBlockEditing } from '@ckeditor/ckeditor5-code-block';
-import {
-	_setModelData as setModelData,
-	_getModelData as getModelData,
-	_getViewData as getViewData
-} from '@ckeditor/ckeditor5-engine';
+import { ClassicEditor, Essentials, Paragraph, Heading, CodeBlockEditing, _setModelData as setModelData, _getModelData as getModelData, _getViewData as getViewData } from 'ckeditor5';
 import MermaidEditing from '../src/mermaidediting.js';
 
 /* global document */
diff --git a/packages/ckeditor5-mermaid/tests/mermaidtoolbar.ts b/packages/ckeditor5-mermaid/tests/mermaidtoolbar.ts
index 2bf0a9550..948a47a41 100644
--- a/packages/ckeditor5-mermaid/tests/mermaidtoolbar.ts
+++ b/packages/ckeditor5-mermaid/tests/mermaidtoolbar.ts
@@ -1,8 +1,4 @@
-import { ClassicEditor as ClassicTestEditor } from '@ckeditor/ckeditor5-editor-classic';
-import { Essentials } from '@ckeditor/ckeditor5-essentials';
-import { Paragraph } from '@ckeditor/ckeditor5-paragraph';
-import { WidgetToolbarRepository } from '@ckeditor/ckeditor5-widget';
-import { _setModelData as setData } from '@ckeditor/ckeditor5-engine';
+import { ClassicEditor as ClassicTestEditor, Essentials, Paragraph, WidgetToolbarRepository, _setModelData as setData } from 'ckeditor5';
 
 import Mermaid from '../src/mermaid.js';
 
diff --git a/packages/ckeditor5-mermaid/tests/mermaidui.ts b/packages/ckeditor5-mermaid/tests/mermaidui.ts
index 73ef1fd7f..698293c1f 100644
--- a/packages/ckeditor5-mermaid/tests/mermaidui.ts
+++ b/packages/ckeditor5-mermaid/tests/mermaidui.ts
@@ -1,5 +1,4 @@
-import { ClassicEditor } from '@ckeditor/ckeditor5-editor-classic';
-import { _setModelData as setModelData } from '@ckeditor/ckeditor5-engine';
+import { ClassicEditor, _setModelData as setModelData } from 'ckeditor5';
 
 import Mermaid from '../src/mermaid.js';
 import MermaidUI from '../src/mermaidui.js';